Plastering composition



UNITED STATES PATENT OFFICE,

HENRY GRAF, OF SEBEWAING, MICHIGAN.

PLASTERING COMPOSlTiON.

SPECIFICATION forming part of Letters Patent No. 291,508, dated January 8, 188i.

Application filed May 5, 1883.

No specimens.)

To all whom, it may concern Be it known that I, HENRY GRAF, of Sebewaing, in the county of Huron and State of 7 Michigan, have invented certain new and use- 5 ful Improvementsin Plastering Compositions,-

of which the following is a specification.

This invention has reference to animproved plastering composition that combines considerable durability and tenacity; and the invention consists of slaked lime, plaster-of-paris, sawdust, glue, glycerine, and cows hair in about thefollowing manner and proportions: Four and a half pounds of slaked lime are mixed with one pound of plaster-ofparis, four 15 and a half pounds of sawdust, one-quarter of a pound of glue, one-sixteenth of a pound of glycerine, and one-sixteenth of a pound of cow s or other suitable hair. A sutficient quantity of water is added to the slaked lime to produce with the sawdust and cow shair a thicklyflowing mass, to which the glue, that is dissolved in hot water, and the glycerine are added. They are then either spread on the wall or on a panel made of laths of suitable 2 5 size. Panels or sections which are so formed are nailed to the woodwork of the ceiling or Walls and the joints filled with plaster-of-paris or mortar. The panels can also be cut by means of saws into pieces of any required size. The surface is finally whitewashed, caleimined, o

painted, or papered, as desired.

The plastering composition has a tenacity similar to paper-pulp, is very strong and durable, forms a better protection of the walls against moisture, is considerably cheaper than 5 the plastering usually employed, and can be attached to the lathe with wooden pegs.

Having thus described my invention, I claim as new and desireto secure by Letters Patent- Aplastering composition composed of slaked o lime, plaster-of-paris, sawdust, cows hair, glue, and glycerine, prepared substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence 45 of two subscribing witnesses.

I I HENRY GRAF. Witnesses:

RICHARD MARTINI, CHAS. W. LIKEN. 

